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Theranostic of orthotopic gliomas by core-shell structured nanoplatforms

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Light(Science & Applications) 2022年第6期11卷 1034-1035页

作者： Luis d.Carlos Phantom-G CICECO-Aveiro Institute of MaterialsPhysics DepartmentUniversity of Aveiro3810-193 AveiroPortugal

Smart designed core-shell nanostructures formed by a YVO_(4)∶Nd^(3+) nanoparticle as the core,the sonosensitizer hematoporphyrinmonomethyl ether as the carrier,and MnO_(2) nanosheets as the shell demonstrate bimodal ... 详细信息

关键词： modal glioma orthotopic

Matrix metalloproteinases in neural development:a phylogenetically diverse perspective

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Neural Regeneration Research 2016年第3期11卷 357-362页

作者： Christopher d.Small Bryan d.Crawford department of Biology University of New Brunswick

The matrix metalloproteinases（MMPs） are a family of zinc-dependent endopeptidases originally characterized as secreted proteases responsible for degrading extracellular matrix *** canonical role in matrix remodelling is of significant importance in neural development and regeneration,but emerging roles for MMPs,especially in signal transduction pathways,are also of obvious importance in a neural *** of MMP activity is a hallmark of many neuropathologies,and members of every branch of the MMP family have been implicated in aspects of neural development and ***,while extraordinary research efforts have been made to elucidate the molecular mechanisms involving MMPs,methodological constraints and complexities of the research models have impeded *** we discuss the current state of our understanding of the roles of MMPs in neural development using recent examples and advocate a phylogenetically diverse approach to MMP research as a means to both circumvent the challenges associated with specific model organisms,and to provide a broader evolutionary context from which to synthesize an understanding of the underlying biology.

关键词： matrix metalloproteinases extracellular matrix xenopus drosophila zabrafish neural development evolution

Some Specific Unboundedness Property in Smoothness Morrey Spaces. The Non-existence of Growth Envelopes in the Subcritical Case

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Acta Mathematica Sinica,English Series 2016年第2期32卷 137-152页

作者： dorothee d.HAROSKE Susana d.MOURA Institute of Mathematics Priedrich-Schiller-University Jena CMUC Department of MathematicsUniversity of Coimbra

Abstract We study smoothness spaces of Morrey type on Rn and characterise in detail those situa s,r n s n tions when such spaces of type Ap,q^s,r（Rn ） or A u^sp,q（R ） are not embedded into L∞（R^n）. We can show that in the so-called sub-critical, proper Morrey case their growth envelope function is always infinite which is a much stronger assertion. The same applies for the Morrey spaces Mu,p（Rn） with p 〈 u. This is the first result in this direction and essentially contributes to a better understanding of the structure of the above spaces.

关键词： Besov-type space Morrey space Besov-Morrey space Triebel-Lizorkin-Morrey space,growth envelope atomic decomposition

Snapshot imaging of ultrashort electron bunches

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Light(Science & Applications) 2024年第7期13卷 1226-1228页

作者： Andreas döpp Ludwig-Maximilian-Universität München Am Coulombwall 185748GarchingGermany Max Planck Institut für Quantenoptik Hans-Kopfermann-Strasse 1Garching85748Germany

New measurements combine spatial and temporal information from optical transition radiation to estimate the three-dimensional structure of electron bunches from a laser wakefield accelerator.

关键词： ultrashort Snapshot electron

Efficient approaches of determining the motion of a spherical particle in a swirling fluid flow using weighted residual methods

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Particuology 2015年第6期13卷 68-74页

作者： Seiyed E. Ghasemi M. Vatani d.d. Ganji Young Researchers and Elite Club Qaemshahr Branch Islamic Azad University Qaemshahr lran department of Mechanical Engineering Babol University of Technology Babol lran

The motion of a spherical particle released in a swirling fluid flow is studied employing the least-squares method and method of moments. The governing equations are obtained and solved employing the two methods. The accuracy of the results is examined against the results of a fourth-order Runge-Kutta numer- ical method. The effects of various parameters, namely the initial radius, initial radial velocity, initial angular velocity, and drag-to-inertia ratio, on the non-dimensional velocity profiles and particle position distribution are considered. The results show that the radial velocity increases over time while the angular velocity decreases, and that an increase in the initial radial velocity increases the particle radial distance and angular velocity but decreases the radial velocity profile.

关键词： Spherical particle Swirling flow Radial velocity Angular velocity Least-squares method Method of moments

Cultured meat in western media: The disproportionate coverage of vegetarian reactions, demographic realities, and implications for cultured meat marketing

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Journal of Integrative Agriculture 2015年第2期14卷 264-272页

作者： Patrick d Hopkins department of Philosophy Millsaps College Center for Bioethics University of Mississippi Medical CenterJackson MS 39210USA

This paper examines the media coverage of the 2013 London cultured meat tasting event, particularly in the United States, Canada, and the United Kingdom. Using major news outlets, prominent magazines covering food and science issues, and advocacy websites concerning meat consumption, the paper characterizes the overall emphases of the coverage, the tenor of the coverage, and compares the media portrayal of the important issues to the demographic and psychological realities of the actual consumer market into which cultured meat will compete. In particular, the paper argues that Western media gives a distorted picture of what obstacles are in the path of cultured meat acceptance, especially by overemphasizing and overrepresenting the importance of the reception of cultured meat among vegetarians. Promoters of cultured meat should recognize the skewed impression that this media coverage provides and pay attention to the demographic data that suggests strict vegetarians are a demographically negligible group. Resources for promoting cultured meat should focus on the empirical demographics of the consumer market and the empirical psychology of mainstream consumers.

关键词： cultured meat vegetarianism vegans Mark Post in vitro meat moral psychology consumer market disgust

Effects of human disturbance on nest placement of the woodpigeon (Columba palumbus): a case study from the Middle Atlas, Morocco

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Integrative Zoology 2014年第3期9卷 349-359页

作者： Saâd HANANE Forest Research Center High Commissariat for WaterForests and Desertification ControlRabat-AgdalMorocco

The woodpigeon(Columba palumbus)is a common and widespread bird in Morocco(North Africa).I examined,over 2 years(2010 and 2011),the breeding density and nest placement of this game species in relation to nest site habitat and degree of human *** study area was in the Middle Atlas Tighboula mountain forest,Morocco,in a disturbed and an undisturbed *** data collected in the 2 study sites,I aimed to identify the factors influencing the placement of nests within holm oak trees(Quercus rotundifolia)and their densities.I found that habitat structures,influenced by grazing disturbance,have affected nesting density and the location of nests of this *** place their nests in a higher position(3.42±0.19 m)when disturbance intensity is high and lower(1.68±0.1 m)when disturbance intensity is low,and show higher nesting density in less disturbed zone(3.1±0.4 nests/ha)than in highly disturbed zones(1.4±0.2 nests/ha).Grazing disturbance could pose a threat to population persistence at a broader scale and could potentially reduce the abundance of this species by altering the composition and the structure of the forest nesting *** multi-scale studies are needed to assess the effects of different levels of grazing disturbance on woodpigeon nest density and placement,and to enhance our knowledge of the breeding behavior of this game species under variable environments.

关键词： breeding density Columba palumbus holm oak Middle Atlas Morocco nest location woodpigeon

Reconstructing the Potential Function in a Formulation of Quantum Mechanics Based on Orthogonal Polynomials

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Communications in Theoretical Physics 2017年第12期67卷 711-728页

作者： A.d.Alhaidari Saudi Center for Theoretical Physics

In a recent reformulation of quantum mechanics, the properties of the physical system are derived from orthogonal polynomials that make up the expansion coefficients of the wavefunction in a complete set of square integrable basis. Here, we show how to reconstruct the potential function so that a correspondence with the standard formulation could be established. However, the correspondence places restriction on the kinematics of such problems.

关键词： wavefunction potential function orthogonal polynomials recursion relation tridiagonal representations asymptotics

Helicobacter pylori infection causes gastric cancer? A review of the epidemiological,meta-analytic, and experimental evidence

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World Journal of Gastroenterology 2006年第19期12卷 2991-2999页

作者： Guy d Eslick School of Public Health The University of Sydney SydneyNew South WalesAustralia department of Medicine The University of SydneyNepean HospitalPenrithNew South WalesAustralia

Since the discovery of Carnpylobacter-like organisms （Helicobacter pylori） more than two decades ago the possibility of a relationship with gastric cancer has been postulated, tested and supposedly proven. There have been numerous human studies of various designs from many countries around the world. Several meta-analyses have been published and more recently a small number of experimental animal studies were reported looking at the association between Helicobacter pylori infection and gastric cancer. Over the years, the human epidemiological studies have produced conflicting results; the metaanalyses have as one would expect produced similar pooled estimates; while the early experimental animal studies require replication. The exact mechanisms by which H pylori might cause gastric cancer are still under investigation and remain to be elucidated.

关键词： Helicobacter pylori Gastric cancer Metaanalysis Systematic review